Analytical Model for the Correction of the Creep and Relaxation of the Weight Sensors

M. Rouff, Z. Lakhdari, and M. Cotsaftis (France)

Keywords

force sensors, modelling, creep,relaxation, analytic formulations.

Abstract

We present in this article analytic formulations of creep and relaxation processes, including thermal variation, for force and weight mechatronic sensors. We found that these phenomena can be modelled by a two timescales process for the dynamical behaviour of creep and relaxation, and that under a quasi static assumption of the temperature evolution thermal variation can be given, under usual range of temperature, by a polynomial representation of low order.

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